1939 DC. Discovered 1939 Feb. 22 by A. Patry at Nice.

Named in memory of Auguste Charlois (1864–1910), assistant at the Nice Observatory from 1881 and subsequently first observer until his early and tragic death. An indefatigable observer of comets and minor planets, he discovered 99 numbered minor planets. Although the first 27 of his discoveries were visual ones, he started making photographic searches in 1892, a few months after the pioneering work in that field at Heidelberg. (M 4190)